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- 전자공학회논문지. JOURNAL OF THE KOREAN INSTITUTE OF TELEMATICS AND ELECTRONICS. D(1)
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전체 선택해제
총 56건 검색
본문검색 결과만 보기
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High Power 전달을 위한 새로운 Inverse Pinch Switch에 관한 연구
조국희, 김영배, Cho. Kook-Hee, Kim. Young-Bae 한국조명전기설비학회 照明·電氣設備學會論文誌 6 Pages
한국조명전기설비학회 照明·電氣設備學會論文誌 2006, Vol.20 No.10 120-125 (6 pages)
Inverse pinch 스위치는 기존 스위치와 달리 전극의 손상을 줄이기 위해 나선형 전극형태로 제작하였다. 이 스위치는 전기적 트리거 펄스전압을 인가하여 동작시키며, 본 연구의 실험결과 전극간에 발생되는 아크확산 및 전류이동 때문에 전극수명이 길고, 대전류에도 견디기 때문에 펄스파워 시스템에 사용할 수 있다는 것을 확인하였다. -
DC Rail Side Series Switch and Parallel Capacitor Snubber-Assisted Edge Resonant Soft-Switching PWM DC-DC Converter with High-Frequency Transformer Link
Morimoto. Keiki, Fathy. Khairy, Ogiwara. Hiroyuki, Lee. Hyun-Woo, Nakaoka. Mutsuo 전력전자학회 Journal of power electronics : JPE 10 Pages
전력전자학회 Journal of power electronics : JPE 2007, Vol.7 No.3 181-190 (10 pages)
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Selective Dual Duty Cycle Controlled High Frequency Inverter Using a Resonant Capacitor in Parallel with an Auxiliary Reverse Blocking Switch
Saha. Bishwajit, Suh. Ki-Young, Kwon. Soon-Kurl, Mishima. Tomokazu, Nakaoka. Mutsuo 전력전자학회 Journal of power electronics : JPE 6 Pages
전력전자학회 Journal of power electronics : JPE 2007, Vol.7 No.2 118-123 (6 pages)
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A Novel type of High-Frequency Transformer Linked Soft-Switching PWM DC-DC Power Converter for Large Current Applications
Morimoto. Keiki, Ahmed. Nabil A., Lee. Hyun-Woo, Nakaoka. Mutsuo 대한전기학회 Journal of electrical engineering & technology 10 Pages
대한전기학회 Journal of electrical engineering & technology 2006, Vol.1 No.2 216-225 (10 pages)
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High-Frequency Forward Transformer Linked PWM DC-DC Power Converter with Zero Voltage Switching and Zero Current Switching Bridge Legs
Moisseev. Serguei, Hamada. Satoshi, Ishitobi. Manabu, Hiraki. Eiji, Nakaoka. Mutsuo 전력전자학회 Journal of power electronics : JPE 10 Pages
전력전자학회 Journal of power electronics : JPE 2002, Vol.2 No.4 278-287 (10 pages)
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Two-Switch Auxiliary Resonant DC Link Snubber-Assisted Three-Phase Soft Switching PWM Sinewave Power Conversion System with Minimized Commutation Power Losses
Nagai. Shinichiro, Sato. Shinji, Ahmed. Tarek, Nakaoka. Mutsuo 전력전자학회 Journal of power electronics : JPE 10 Pages
전력전자학회 Journal of power electronics : JPE 2003, Vol.3 No.4 249-258 (10 pages)
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A Novel Extended Topology for Cascade Multilevel Voltage Source Converter for High-Power Applications with Interesting Advantages
Alishah. Rasoul Shalchi, Nazarpour. Daryoosh, Hosseini. Seyed Hossein, Sabahi. Mehran 대한전기학회 분과 Journal of international Conference on Electrical Machines and Systems 7 Pages
대한전기학회 분과 Journal of international Conference on Electrical Machines and Systems 2014, Vol.3 No.3 298-304 (7 pages)
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Dual Utility AC Line Voltage Operated Voltage Source and Soft Switching PWM DC-DC Converter with High Frequency Transformer Link for Arc Welding Equipment
Morimoto. Keiki, Ahmed. NabilA., Lee. Hyun-Woo, Nakaoka. Mutsuo 대한전기학회 KIEE international transactions on electrical machinery and energy conversion systems 8 Pages
대한전기학회 KIEE international transactions on electrical machinery and energy conversion systems 2005, No.0 366-373 (8 pages)
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Relationship between straight and curved walking abilities among inpatients in the subacute phase according to walking independence level
Kazuya Fujii, Masaki Kobayashi, Miyuki Sato, Yasuyoshi Asakawa 물리치료재활과학회 Physical Therapy Rehabilitation Science 5 Pages
물리치료재활과학회 Physical Therapy Rehabilitation Science 2018, 제 7권 제 2호 1 49-53 (5 pages)
Objective: This study was performed to examine differences in the association between straight and curved walking abilities of inpatients in the subacute phase and walking independence level. Design: Cross-sectional study. Methods: Subjects were divided into an independent group and a supervised group (n=10 each) by walking independence level within the ward decided by physical therapists. Inclusion criteria comprised the ability to ambulate independently within the ward, regardless of the use... -
β-irradiation (Ho patch)-induced skin injury in mini-pigs: effects on NF-κB and COX-2 expression in the skin
Joong-Sun Kim, Kyung-Jin Rhim, Won-Seok Jang, Sun-Joo Lee, Yeonghoon Son, Seung-Sook Lee, Sunhoo Park, Sang Moo Lim 대한수의학회 Journal of Veterinary Science 9 Pages
대한수의학회 Journal of Veterinary Science 2015, 제 16권 제 1호 1 1-9 (9 pages)
pression of nuclear factor-kappa B (NF-κB) differed significantly between the untreated and irradiated areas. One week after irradiation, cyclooxygenase-2 (COX-2) expression was mostly limited to the basal cell layer and scattered among these cells. High levels of COX-2 expression were detected throughout the full depth of the skin 4 weeks after irradiation. These findings suggest that NF-κB and COX-2 play roles in epidermal cell regeneration following β-irradiation of mini-pig skin. -
Sporozoite proteome analysis of Cryptosporidium parvum by one-dimensional SDS-PAGE and liquid chromatography tandem mass spectrometry
AMAM Zonaed Siddiki* 대한수의학회 Journal of Veterinary Science 8 Pages
대한수의학회 Journal of Veterinary Science 2013, 제 14권 제 2호 1 107-114 (8 pages)
Despite the development of new technologies, new challenges still remain for large scale proteomic profiling when dealing with complex biological mixtures. Fractionation prior to liquid chromatography tandem mass spectrometry (LC-MS/MS) analysis is usually the preferred method to reduce the complexity of any biological sample. In this study, a gel LC-MS/MS approach was used to explore the stage specific proteome of Cryptosporidium (C.) parvum. To accomplish this, the sporozoite protein of C.... -
Diversity of swine Bordetella bronchiseptica isolates evaluated by RAPD analysis and PFGE
Eun-Kyung Shin, Yeon-Soo Seo, Jeong Hee Han, Tae-Wook Hahn 대한수의학회 Journal of Veterinary Science 9 Pages
대한수의학회 Journal of Veterinary Science 2007, 제 8권 제 1호 10 65-73 (9 pages)
The degree of genetic diversity in 45 Bordetella (B.) bronchiseptica strains comprised of a vaccine strain (N = 1), reference strains (N = 3) and field isolates (N = 41) was evaluated using random amplified polymorphic DNA (RAPD) fingerprinting and pulsed-field gel electrophoresis (PFGE). Three candidate primers were selected for RAPD analysis after screening 20 random decamer oligonucleotides for their discriminatory abilities. The OPA-07, OPA-08 and OPA-18 primers yielded 10, 10, and 6... -
Cilostazol Decreases Ethanol-Mediated TNFalpha Expression in RAW264.7 Murine Macrophage and in Liver from Binge Drinking Mice
YounJuLee, JongRyeolEun 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2012, Vol.16 No.2 8 131-138 (8 pages)
Alcoholic hepatitis is a leading cause of liver failure in which the increased production of tumor necrosis factor Ձ (TNFՁ) plays a critical role in progression of alcoholic liver disease. In the present study, we investigated the effects of cilostazol, a selective inhibitor of type III phosphodiesterase on ethanol-mediated TNFՁ production in vitro and in vivo, and the effect of cilostazol was compared with that of pentoxifylline, which is currently used in clinical trial.... -
체성신경계(體性神經系)의 기계적(機械的) 생리학(生理學)- 기계적전달(機械的傳達)과 체성신경원(體性神經元)의 초발국소흥분(初發雇所興奮) -
곽재희(Kwak, Je-Hi) 대한생리학회 대한생리학회지 16 Pages
대한생리학회 대한생리학회지 1967, 제 1권 제 1호 1 7-22 (16 pages)
인간(人間)의 감각(感覺), 운동(運動), 사고등(思考等)에 직접관여(直接關與)하는 체성신경원(體性神經元)이 인체내(人體內)에 있어서 단일세포동물(單一細胞動物)과 비체성신경원(非體性神經元)과 같이 각종(各種)의 자극(刺戟)에 직접응(直接應)하므로써 기능적(機能的) 활동(活動)을 개시(開始)한다는 한연(漢然)한 예상하(豫想下)에서 말초(末梢)에서는 혹종(或種)의 통소(痛素)를, 중추(中樞)에서는 어떤 묘(妙)한 화학적(化學約)인 흥분전달물질(興奮傳達物質)을 탐구(探求)하고 있으며 말초(末梢)의 통흥분시발(痛興奮始發)과... -
Alteration of Genetic Make-up in Karnal Bunt Pathogen (Tilletia indica) of Wheat in Presence of Host Determinants
한국식물병리학회 The Plant Pathology Journal 11 Pages
한국식물병리학회 The Plant Pathology Journal 2015, 31권 2호 1 97-107 (11 pages)
Alteration of genetic make-up of the isolates and monosporidial strains of Tilletia indica causing Karnal bunt (KB) disease in wheat was analyzed using DNA markers and SDS-PAGE. The generation of new variation with different growth characteristics is not a generalized feature and is not only dependant on the original genetic make up of the base isolate/monosporidial strains but also on interaction with host. Host determinant(s) plays a significant role in the generation of variability and the... -
2kW 출력을 갖는 영전압 스위칭 위상 천이 풀 브리지 컨버터 설계
황규일(Kyu-Il Hwang), 김일송(Il-Song Kim) 인문사회과학기술융합학회 예술인문사회융합멀티미디어논문지 8 Pages
인문사회과학기술융합학회 예술인문사회융합멀티미디어논문지 2018, 제 8권 제 11호 49 523-530 (8 pages)
전력 변환 시스템의 고효율, 고전력 밀도를 위한 많은 연구가 활발하게 되어 왔다. 스위칭 주파수를 높임으로써 컨버터의 소형화 및 경량화를 꾀할 수 있으나 스위칭 주파수를 높이게 되면 스위칭 손실이 증가하게 된다. 따라서 스위칭 손실을 저감하기 위한 기법이 적용되어야 한다. 본 연구에서는 이 중 부가적인 회로 없이 변압기의 누설 인덕턴스와 스위치의 출력 커패시터를 이용하여 영전압 스위칭이 가능한 영전압 스위칭(Zero-Voltage Switching) 위상천이(Phase Shift) 풀 브리지 컨버터를 이용하여, 영전압 위상천이 풀 브리지... -
Matlab SISO TOOL을 이용한 벅 컨버터의 전압 제어기 설계 및 해석
황규일, 김일송 인문사회과학기술융합학회 예술인문사회융합멀티미디어논문지 10 Pages
인문사회과학기술융합학회 예술인문사회융합멀티미디어논문지 2017, 제 7권 제 10호 76 827-836 (10 pages)
본 연구에서는 전압강하형 컨버터로 동작하는 벅 컨버터의 최적 제어기법에 대해서 서술한다. 벅 컨버터의 제어기 설계 기법에 대해서는 많은 연구가 이루어져 왔지만, 그 방법이 복잡하고 회로의 파 라미터가 바뀔 경우 처음부터 다시 설계를 해야 하는 단점이 있었다. 본 연구에서는 벅 컨버터를 상 태평균화 모델을 이용하여 전달함수를 구한 다음, Root Locus와 Bode Plot을 이용하여 시스템 요구사 항(requirement)을 만족시키는 제어기 설계 방법을 제안한다. 제안된 방식은 쉽게 구현이 가능하며 컴 퓨터 시뮬레이션을 통해... -
새로운 DAB 컨버터 설계
박해찬, 김일송 인문사회과학기술융합학회 예술인문사회융합멀티미디어논문지 8 Pages
인문사회과학기술융합학회 예술인문사회융합멀티미디어논문지 2016, 제 6권 제 1호 37 377-384 (8 pages)
본 연구는 배터리 전력저장장치(BESS)를 위한 새로운 양방향 컨버터에 대한 기술이다. 제안된 토 플로지는 일반적으로 사용되고 있는 DAB(Dual Active Bridge) 컨버터의 효율을 더 높일 수 있게 설 계되었다. DAB Converter는 스위치 8개, 변압기 1개, 인덕턴스 1개로 구성하고 10배 이상의 높은 승/ 강압비, soft-switching 기능으로 대용량/저전압 배터리를 구성할 수 있다. LV(Low-Voltage)단에 커플 링-인덕턴스를 연결해 충전시 벅(Buck Converter)동작하고, 방전시 부스트(Boost Converter)동작하는 양방향 컨버터를 설계했다.... -
Hardware Implementation of Pulse Code Modulation Speech Compression Algorithm
Geetam Singh Tomar 인문사회과학기술융합학회 예술인문사회융합멀티미디어논문지 8 Pages
인문사회과학기술융합학회 예술인문사회융합멀티미디어논문지 2012, 제 2권 제 1호 3 17-24 (8 pages)
Voice-over Internet Protocol (VoIP) telephony is increasingly becoming a variant telecommunication technology that one day may surpass the old analog and digital telephone systems. The Quality-of-Service (QoS) factor is an important parameter to be considered when measuring the performance of a VoIP system. Many factors may influence the QoS of a given VoIP system. Some of these factors are delay, jitter and packet loss. This paper served to demonstrate that the algorithmic delay (latency) of... -
Gaussian Profile based Vehicular Mobility Modeling
Brijesh Kumar Chaurasia, Shekhar Verma, G. S. Tomar 인문사회과학기술융합학회 예술인문사회융합멀티미디어논문지 18 Pages
인문사회과학기술융합학회 예술인문사회융합멀티미디어논문지 2011, 제 1권 제 2호 2 59-76 (18 pages)
The driving behavior of a person is influenced by a multitude of local and global factors. These include nature of the driver, distance between the source and destination, condition of the road selected by the driver, traffic conditions, time constraints, lane changing, overtaking actions, safe distance, reaction time etc. are vital for modeling the mobility of a vehicle and are largely determined by the driving behavior. In this paper, a profile based model has been proposed to define the... -
Denitration Effect by Non-thermal Plasma
Hyun Choon Kang, Yong Yi Park, Myung Whan Hwang, Seong Joong Kim, In sung Woo, Yeun Seon Kim 한국열환경공학회 열환경공학 8 Pages
한국열환경공학회 열환경공학 2005, 제 2권 1호 4 31-46 (8 pages)
condition was optimized in order to maximize the NO decomposition efficiency. The highest NO decomposition efficiency obtained was 94.3% at the power consumption of 19.8 W for the frequency of 10 kHz. NO decomposition efficiency increased with increasing residence time or with decreasing initial concentration of NO. As the thickness and melting point of the electrode increased, the NO decomposition efficiency was improved. It was also found that CH4 was an effective additive in this experiment. -
New Directions and Tasks of the Rural Educational Welfare Policy in Korea
임연기, Youn Kee Im 한국교육행정학회 교육행정학연구 25 Pages
한국교육행정학회 교육행정학연구 2011, 제 29권 제 2호 3 37-61 (25 pages)
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In-House Advertising Agency－Korean Way of Doing Business? : An Exploratory Study of Korean In-House Ad Agency
Nam-Hyun Um 한국광고PR실학회 광고PR실학연구 23 Pages
한국광고PR실학회 광고PR실학연구 2017, 제 10권 2호 8 193-215 (23 pages)
This study investigates Korean advertising practitioners’ perspectives on the Korean advertising industry, specifically on the in-house advertising structure, its positive and/or negative effects, and the relationship between an advertising agency and its clients. Participating in this study are a total of 136 Korean advertising practitioners from five in-house agencies and four independent agencies. The study results suggest that in-house agencies threaten the growth and even the survival of... -
Observational Study of Early Childhood Care and Education Programs in Rural Government Primary Schools in Tamil Nadu, India
Shubha Janardhan, Jayanthi Venkataraman, Suptendra Nath Sarbadhikari 환태평양유아교육연구학회 Asia-Pacific journal of research in early childhood education 28 Pages
환태평양유아교육연구학회 Asia-Pacific journal of research in early childhood education 2021, Vol.15 No.2 11 229-256 (28 pages)
An Early Childhood Care and Education (ECCE) program in rural India was evaluated in terms of care and learning outcomes of children. The study was undertaken to observe and describe the ECCE system for children who were economically and educationally disadvantaged and enrolled in three Government Primary Schools (GPS) in India. In particular, the study tries to answer the question, ‘What factors affect the learning of Mathematics and English in the primary schools of rural Tamil Nadu?’... -
The Effects of Digital Game-Based Learning on Early English Literacy Task for Non-Native Speakers
Norehan Zulkiply, Afina Abd Aziz 환태평양유아교육연구학회 Asia-Pacific journal of research in early childhood education 18 Pages
환태평양유아교육연구학회 Asia-Pacific journal of research in early childhood education 2019, Vol.13 No.2 7 123-140 (18 pages)
Despite the growing evidence for the benefits of digital game-based learning (DGBL) in promoting learning in various contexts, the effects of DGBL on early English literacy learning for non-native speakers remains unknown. The present study examined the effectiveness of using DGBL in enhancing student learning in an early English literacy task for non-native speakers. In the experiment, 66 Malay pre-school students who were identified as having low literacy in English (determined using a... -
Development and Implementation of a Science-based Integrated Curriculum for Nurturing the Gifted Potentials of Young Filipino Children
Greg Tabios Pawilen 환태평양유아교육연구학회 Asia-Pacific journal of research in early childhood education 23 Pages
환태평양유아교육연구학회 Asia-Pacific journal of research in early childhood education 2018, Vol.12 No.3 3 45-67 (23 pages)
This is a descriptive study focusing on the development and implementation of a science-based integrated curriculum to nurture the gifted potentials in science of young Filipino children. Specifically, it answers four questions: (1) What are the interests, characteristics, and learning styles of young children that are potentially gifted in science? (2) What are the contents of the science-based curriculum for young children with gifted potentials? (3) What instructional model can be used to... -
Expanding the Current Definition of Program Quality: Exploring Parents’ Notions of What Makes a Good Program
Kyoung Jin Kim 환태평양유아교육연구학회 Asia-Pacific journal of research in early childhood education 20 Pages
환태평양유아교육연구학회 Asia-Pacific journal of research in early childhood education 2012, Vol.6 No.1 3 43-62 (20 pages)
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Study of complex electrodeposited thin film with multi-layer graphene-coated metal nanoparticles
Young-Lae Cho, Jung-woo Lee, Chan Park, Young-il Song, Su-Jeong Suh 한국탄소학회 Carbon Letters 6 Pages
한국탄소학회 Carbon Letters 2017, Vol.21 8 68-73 (6 pages)
The resistivity of the bare-electrodeposited copper thin film (BETF) was 2.092 × 10?6 Ω·cm, and the resistivity of the CETF after the addition of 300 ppm MGCNs was decreased by 2% to ~2.049 × 10?6 Ω·cm. The corrosion resistance of the BETF was 9.306 Ω, while that of the CETF was increased to 20.04 Ω. Therefore, the CETF with MGCNs can be used in interconnection circuits for printed circuit boards or semiconductor devices on the basis of its low resistivity and high corrosion resistance. -
Thermoelectric Seebeck and Peltier effects of single walled carbon nanotube quantum dot nanodevice
H. A. El-Demsisy, M. D. Asham, D. S. Louis, A. H. Phillips 한국탄소학회 Carbon Letters 8 Pages
한국탄소학회 Carbon Letters 2017, Vol.21 2 8-15 (8 pages)
The thermoelectric Seebeck and Peltier effects of a single walled carbon nanotube (SWCNT) quantum dot nanodevice are investigated, taking into consideration a certain value of applied tensile strain and induced ac-field with frequency in the terahertz (THz) range. This device is modeled as a SWCNT quantum dot connected to metallic leads. These two metallic leads operate as a source and a drain. In this three-terminal device, the conducting substance is the gate electrode. Another metallic gate... -
빛과 전기 개념의 연계성에 관한 과학과 교육과정의 국제 비교
이효녕, 박병열, 전재돈, 이현동 이화여자대학교 교과교육연구소 교과교육학연구 14 Pages
이화여자대학교 교과교육연구소 교과교육학연구 2016, 제 20권 4호 4 322-335 (14 pages)
이 연구의 목적은 우리나라를 포함한 7개국의 과학과 교육과정의 연계성을 ‘빛’과 ‘전기’개념을 중심으로 분석하여 현재 2009 개정 교육과정에서의 우리나라 과학과 교육과정의 연계성에 대한 문제점을 도출하고 앞으로의 교육과정에서 연 계성을 강화하는 일반화 방안을 도출하고자 하였다. 연구 대상은 국가교육과정정보센터(NCIC)에서 수집한 각 나라의 교육 과정 원문 및 번역본이며, Tyler(1949)의 교육과정 조직 원리를 바탕으로 종적·횡적 연계성을 기초로 과학과 교육과정 내의 ‘빛’과 ‘전기’개념에 대한 내용을 비교...
